The kettle from Promis is particularly useful for making tea and cooking, as it can instantly boil water and reduce waiting time during your cooking. It heats and keeps the water warm, regardless of the heat source it is placed on. Tea leaves are not placed inside a kettle, only in the teapot where the tea is served. It is made of stainless steel, a material particularly resistant to high temperatures, which heats up very quickly and can maintain the temperature for a longer time compared to other metal kettles.